Condensed Consolidated Balance Sheets (Current Period Unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 26,903	$ 28,791
Accounts receivable (net of allowance for doubtful accounts of $642 and $703, respectively)	14,785	20,047
Inventories:
Finished goods, net	11,995	10,949
Work in process	611	345
Raw materials and components, net	1,721	3,891
Total inventories, net	14,327	15,185
Recoverable income taxes	4,175	2,207
Other current assets	4,965	5,873
Total current assets	65,155	72,103
Property, plant and equipment (net of accumulated depreciation of $5,472 and $4,781, respectively)	14,366	14,721
Note receivable	2,730	2,497
Intangible assets, net	937	895
Goodwill	1,119	1,123
Other assets	4,396	4,105
Total assets	88,703	95,444
Current liabilities:
Accounts payable	9,030	12,844
Accrued expenses	4,445	6,236
Customer deposits/deferred revenue	3,525	3,474
Income tax payable	458	888
Total current liabilities	17,458	23,442
Deferred revenue	2,602	3,008
Deferred income taxes	815	790
Other accrued expenses, net of current portion	1,746	1,748
Total liabilities	22,621	28,988
Stockholders’ equity:
Common stock, par value $.01 per share; Authorized 25,000 shares; issued 16,912 and 16,869 shares at June 30, 2014 and December 31, 2013, respectively; 14,181 and 14,138 shares outstanding at June 30, 2014 and December 31, 2013, respectively	167	167
Additional paid-in capital	38,431	38,231
Accumulated other comprehensive income:
Foreign currency translation	(1,362)	(959)
Postretirement benefit obligations	190	190
Retained earnings	46,895	47,066
	84,321	84,695
Less 2,731 of common shares in treasury, at cost at June 30, 2014 and December 31, 2013	(18,239)	(18,239)
Total stockholders’ equity	66,082	66,456
Total liabilities and stockholders’ equity	$ 88,703	$ 95,444